Electric timepiece with solar cell

Abstract

An electric timepiece with a solar cell in which an aesthetic aspect is satisfied at low costs without decorating a dial trim ring and the power generation amount sufficient for driving a timepiece is obtained is provided. An electric timepiece with a solar cell includes a dial, a light permeable dial trim ring disposed to surround a center portion of the dial, and a solar cell disposed outside an outside surface of the dial trim ring to face the outside surface. An inclination surface is formed at least in a part of the outside surface of the dial trim ring, which faces the solar cell, the inclination surface inclines toward the center portion of the dial as going from the dial in a height direction of the dial trim ring, and a different color member having a color different from that of a light-receiving surface of the solar cell is provided to face a lower surface of the dial trim ring.

The invention claimed is: 
     
       1. An electric timepiece with a solar cell comprising:
 a dial; 
 a light permeable dial trim ring disposed to surround a center portion of the dial, the dial trim ring including at least a bottom and an outside surface; and 
 a solar cell disposed outside the outside surface to face the outside surface, wherein the dial trim ring includes a first surface at least in a part of the outside surface and a second surface at least in a part of the bottom, 
 a sum of a first angle at which the first surface inclines toward the center portion of the dial as going from the dial in a height direction and a second angle at which the second surface inclines downward in the height direction as going from the center portion exceeds 0 degree, and 
 a different color member having a color different for that of a light-receiving surface of the solar cell is provided to face the second surface. 
 
     
     
       2. The electric timepiece with the solar cell according to  claim 1 , wherein the first surface and the second surface are smooth surfaces. 
     
     
       3. The electric timepiece with the solar cell according to  claim 1 , wherein the different color member is disposed in the bottom or is a member formed in the bottom. 
     
     
       4. The electric timepiece with the solar cell according to  claim 3 , wherein
 the different color member is the member disposed in the bottom, and 
 the different color member is closely disposed in the bottom. 
 
     
     
       5. The electric timepiece with the solar cell according to  claim 1 , wherein
 at least one of the first surface in which the first angle exceeds 0 degree and the second surface in which the second angle exceeds 0 degree is formed in an entire circumference of the dial trim ring. 
 
     
     
       6. The electric timepiece with the solar cell according to  claim 1 , wherein the first angle exceeds 0 degree. 
     
     
       7. The electric timepiece with the solar cell according to  claim 6 , wherein
 the solar cell is disposed to separate from the outside surface, and 
 a substance or a member having a refractive index smaller than that of the dial trim ring is provided between the first surface and the solar cell. 
 
     
     
       8. The electric timepiece with the solar cell according to  claim 6 , wherein the first surface is formed from an end portion of the outside surface on the dial side to an end portion of the outside surface on the side opposite to the dial side. 
     
     
       9. The electric timepiece with the solar cell according to  claim 6 , wherein the first surface inclines at a constant angle toward the center portion of the dial as going from the dial in the height direction. 
     
     
       10. The electric timepiece with the solar cell according to  claim 6 , wherein the first surface is not formed from the end portion of the outside surface on the dial side to a position at a predetermined height in the outside surface, and is formed at least in a part between the position at the predetermined height in the outside surface and the end portion of the outside surface on the side opposite to the dial side. 
     
     
       11. The electric timepiece with the solar cell according to  claim 1 , wherein the second angle exceeds 0 degree. 
     
     
       12. The electric timepiece with the solar cell according to  claim 11 , wherein at least a part of the second surface extends to a position lower than the surface of the dial in the height direction. 
     
     
       13. The electric timepiece with the solar cell according to  claim 11 , wherein the second surface is formed from a side surface in an outer circumference of the dial to the outside surface. 
     
     
       14. The electric timepiece with the solar cell according  claim 11 , wherein the second surface inclines downward in the height direction at a constant angle as going from the center portion. 
     
     
       15. The electric timepiece with the solar cell according to  claim 11 , wherein the second surface is not formed from an outer circumference end portion of the bottom to a position in a predetermined length in the bottom and is formed at least in a part between the position in the predetermined length in the bottom and an inner circumference end portion of the bottom.